Tube expanding, beading, and cutting tool.



' Patented May I, I900; H. G. LYKKEN &. .l. C. HOISVEN.

TUBE EXPANDING, BEADING, AND CUTTING TOOL.

(Applicaltion filed Sept 1,

(No lI odai.)

WITNESSES men STATES ATZENT OFFIcE.

HENRY e. LYKKEN AND JOHN c. Ho synn', OF GRAFTON, NORTH DAKOTA.

ue-s. EXPANDING, BEADING, ANo C'UTII'ING'TC'OL.

' ernozrxcamrerm s m i Application filed September 1, 1899. Serial rt. 729,232. (No model.)

' To all whom zit-may concern: Be it known that we, HENRY G. LYKKEN and JOHN. C. HoIsVEN, of Grafton, in the county of Walsh andState of North Dakota, have invented a new and Improved Tube Expanding, Beadi g, d Cutting Tool, of which the following is axfull, clear,.and exact description.

' i The object cit-he invention isto provide a new and improved tube expanding, heading, and cutting tool which is simple and durable in construction, very efiective in ,operation, and more especially designed to properly expend,and.bead' ,the .boiler-tubes against the fineisheetandeto cut out old tubes in boilers and to c ut new ubes to theproper length. I The invention consists-of novel features and parts andico'mbinations of the same,' aswil1 be-fully describe'd hereinafter and then poin 12- "Jed unfit-in the claims? v gj i A practical embodiment of our invention is 3 represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corre- 5 spending parts in all the views. 1 Figure l isaplan View, partly in section, of the improvement as applied. Fig. 2 is a longitudinal sectional elevation of the same. Fig. 3 is a transverse section of the same on the line 3 3 in Fig. 2. Figs. 4 and 5 are side elevations of different forms of expanding and beading'tools, and Figs. 6 and 7 are side elevations of diderent forms of cutters.

The improved tube expanding, beading, and cutting toolis provided with a body A, preferably made' of cylindrical form and of a diameter somewhat less than the tube B in which'the tool is to be used, so that the body A can be readily inserted in the tube, as illustrated in Figs. 1 and 2.

In'the body A is mounted to turn centrally a longitudinally-extending shaft 0, formed with an eccentric or cam C, engaged by a carrier D, fitted to slide in a recess A in the body A in a transverse direction to the longitudinal axis of the body and the shaft, and on the free or outer end of said carrier D is journaled the expanding, beading, or cutting tool adapted to engage the tube at the inside for beading, expandingnor cutting the tube. As shown in Fig. 2, the beading-tool E is apserves a twofold proximately pear-shaped; but different forms Letters Eatentfio, 648.765. dated May 1, 1eoo.-.

of expandingand beading tools may be used, as indicated at E E in Figs. Land 5, and when. it is desired to cut the'tube cutters, such as shown at E E in Figsfdaud flare inserted in the carrier D in lieu of the tools E,E,0rE 'On the outer end of the shaft 0 is mounted to turn and to slide longitndinallya headF, formed with apertures F for the insertion of. j a rod orother instrument to permit the operator to conveniently turn the-head, the latter being also provided at its outer face with apolygonaloffset F for-applying a wrench or the like rammt'he headfif desired,',for

'workingflthe device. The head Fisalsqprov'idedwit h a transverse slot Ffiintowhich projectsapinCicari-ied on the outer-face of 'the-shaf-tO, so that when theuhead is turned the pin 0* is earriedaround with the, head to nimthe shaft cane-at messes tam-ease headiis" free Ito-l slide l'on-gitudinally on the shaft O as -'the slot is elongated in a longitudinalz direction, as indicated in Fig. 1. The inner end of the. shaft'O is provided with a pin C abutting against the inner face of the body A-to prevent the shaft 0 fromsliding in an outward direction.

On the head F, at or near the inner end there0f, are formed' teeth F- in'mesh with similar teeth A formed'on the outer end of thcbody A, so thatwhen the head Fis turned in the direction of the arrow a (see Figs. 1 and 3) then the head carries the body A around with'it, and as the shaft 0 turns with the head F it is'evident that the body, together with the carrierD and the expanding, beading, or cutting tool, is turned around in the tubeto cause the said tool to act on the tube. When the head F is turned, however, inthe inverse direction of the arrow a, then the teeth F glide over the teeth A so that the body A remains stationary for the time being, while the head F is turned and carries with it the shaft 0. Now as the latter is turned in the temporarily-stationary bodyA theeccentric of this shaft causes an outward sliding of the carrier D, so that the expanding, beading, oruicutting tool is moved in a like direction, and consequently fed against the inside of the tube. Thus the head F v purposewat is, itltni'nfd 'thebody A and with it the carrier andexpending, beading, or cutting tool within the tube 13,, and it feeds the carrier and its tool outward upon turningthe head I in a reverse direction, as above described.

In order to hold the teeth F 'in mesh with the teeth A a spring'G is provided, one end of which-rests against the pin 0 and presses with the other end against a shoulder F on the head F. I

When beginning to use the tool, the eccentric C is in such position that the carrier I) is in an innermost position, with the peripheral surface of the cutting, beading, or expanding tool within close proximity of the inner surface of the tube 13. \Vhen the head F is turned in the inverse direction of the arrow a, the eccentric C is turned around and the carrier D is moved outward, together with the expanding, beading, or cutting tool, so

that the latter is moved in engagement with the inner surface of the tube, and then the head F is turned in the direction of the arrow a for bringing the tool in contact with the inner surface of the tube at the place where the tube is to be expanded, beaded, or cut. The head B may be turned once, twice, or several times around in the direction of the arrow a before a reverse movement is given to. the head in. the inverse direction of the arrow a to feed the heading, expanding, or cutting tool outward, it being understood that for ordinary purposes the head 1 is turned in the inverse direction of the arrow (4 a distance corresponding to ihelength of one or two teeth F.

In order to bring the heading, expanding, or cutting tool in the proper position within the tube B, a gage is provided, eonsistin g, essentially, of two members II and I, both ringshaped, and the member II being adapted to abut gainst the outer face of the flue-sheet B. The member II is mounted to turn on the ring-shaped member I, and both members are provided with meshing teeth l[ I, so that when one member is turned on the other they are moved longitudinally apart, owing to the inclined backs of their teeth sliding upon one another; The member I is secured by a setscrew J or other means to the body A, (see Fig. 2,) so that when the member II abuts against the flue-sheet l3 and is turned, then the other member I is moved outward or inward and with it the body A, so as to bring the beading, expanding, or cutting tool the desired distance within the tube 1 \Vheu the desired position of the tool is reached, the two members If and I. are fastened togetherbya set-screw K (shown in Fig. 2) to hold the bodyA and the tool against longitudinal shifting during the expanding, beading, or e ntiing operation.

The eccentric or cam O is so arranged that it moves the carrier D outward during a whole revolution, as will be readily understood by reference to Fig. 3.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent- 1. A tube expanding, beading and cutting tool, comprising a body having a recess near its inner end, a tool-carrier in said recess and movable to project outside the same, a shaft extending through said bodyand formed near its inner'cnd with a cam fitted in said recess and inserted through the tool-carrier, there being provided ratchet-teeth on the outer end of said body, a head havingits inner end fitting in the outer end of said body and formed with ratchet-teeth adapted to mesh with the teeth of the body, the said head being further provided with a transverse slot longitudinally elongated, and a pin extending from the shaft and inserted through said slot, as and'for the purpose set forth.

2. In a tube expanding, beading and cutting tool, a gage comprising two members, one of which is adapted for attachment on the tool and the other of which is mounted to turn' on the first-named member, and means whereby the i n rning of one member relatively to the other will move the members longitudinally with respeetto each other, as set forth.

3. In a tube expanding, beading and cutting tool, a gage comprising two inembersone of which is adapted for attachment on the tool and the other of which is mounted to turn 'on the first-named member, the said members being formed with inclined abut-- tingsurfaces, as and for the purpose set forth.

4. A gage for a tube expanding, beading and cutting tool, comprising two members, one of which is tnrnable and adapted to abut at one end against the flue-sheet and formed with teeth at the other end, the second member being seen red to the tool-body and formed at its inner end with teeth in mesh with the teeth of the first-named member, and means for seen ring the members together after adjustment, substantially as shown and described.

HENRY G. LYKKEN. JOHN (t IIOISYEN.

Witnesses 'l. l). CASEY, It. Mutl'uluunn. 

